From 08e064135dfd6ec5cd09ac07134a9817425aac06 Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@golang.org>
Date: Mon, 1 Jul 2013 17:57:09 -0400
Subject: [PATCH] runtime: disable preemption

There are various problems, and both Dmitriy and I
will be away for the next week. Make the runtime a bit
more stable while we're gone.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/10848043
---
 src/pkg/runtime/proc.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/pkg/runtime/proc.c b/src/pkg/runtime/proc.c
index b93f4911d7..cddbefc0f4 100644
--- a/src/pkg/runtime/proc.c
+++ b/src/pkg/runtime/proc.c
@@ -2149,6 +2149,12 @@ preemptone(P *p)
 	M *mp;
 	G *gp;
 
+// Preemption requires more robust traceback routines.
+// For now, disable.
+// The if(1) silences a compiler warning about the rest of the
+// function being unreachable.
+if(1) return;
+
 	mp = p->m;
 	if(mp == nil || mp == m)
 		return;
-- 
2.48.1